Wild Buckwheat, Fallopia convolvulus
Family: Polygonaceae, Buckwheat Family
Vegetative Characteristics:
Seedling: hypocotyl glabrous, reddish; cotyledons linear, glabrous; first leaves round, glabrous, petioled
Stems: initially erect, becoming twining or creeping and branched at base, to 1.0 m long
Leaves: alternate, 3.0-6.0 cm long, 2.0-5.0 cm wide, simple, sagittate or cordate, heart-shaped at base, pointed at tip; petiole to 6.0 cm long; ocrea at leaf base
Reproductive Characteristics:
Inflorescences: axillary fascicle or raceme; perianth greenish, often purple-spotted, styles 3, united; calyx, 5.0 mm long, strongly triangular, green to white or pinkish, farinose or slightly rough
Fruits: achene, 4.0-5.0 mm long, dull black, ovate, trigonous, faces convex; calyx adhering to achene, rarely keeled
Special Identifying Characteristics:
⇒ twining or trailing annual vine; leaves sagittate or cordate; ocrea at leaf base distinguishes from bindweeds and morningglories; flowers greenish to white or pinkish
